Table 3

Comparison of total and age-specific ILI or ARI consultation rates observed during the pandemic in relation to previous influenza seasons

Country Ŧ

Age specific and total regression coefficients


0-4

5-14

15-64

Over 65

Total


All ages affected


Norway

0.666*

0.667*

0.555*

0.325*

0.606*


Children and working population affected


Ireland

0.815*

0.816*

0.641*

0.063

0.746*


Northern Ireland

0.638*

0.748*

0.465*

-0341*

0.588*


Children affected


Russian Federation

0.540*

0.680*

0.436

-0.436

0.606*


Estonia

0.538*

0.515*

0.223

-0.072

0.407*


Netherlands

0.400*

0.414*

0.022

-0,286*

0.107


Spain

0.358*

0.488*

0.056

-0.147

0.234


Portugal

0.375*

0.520*

-0.179

-0.272*

-0.60


Denmark

0.271*

0.328*

0.115

-0.204

0.157


Latvia

0.296*

0.110

-0.203

-0.379*

-0.102


Austria

-0.052

0.345*

-0.123

-0.424*

-0.026


Slovenia

-0.071

0.353*

0.038

-0.033

0.133


No effect


Belgium

0.034

0.184

-0.026

-0.216

0.121


Poland

0.047

0.115

0.052

-0.151

0.048


Czech Republic

-0.172

0.024

-0.253

-0.394*

-0.216


France

0,076

-0.193

-0,117

0.011

-0.057


Germany

-0.267

0,126

0.006

-0.305*

-0.053


Poland

-0.013

0.068

0.003

-0.203

-0.003


Serbia

-0.157

0.121

0.127

-0.472*

0.033


Slovakia

-0.304*

-0.186

-0.314*

-0.399*

-0.297*


Switzerland

n.a.

n.a.

n.a.

n.a.

0.207


Ukraine

n.a.

n.a.

n.a.

n.a.

0.048


Albania

n.a.

n.a.

n.a.

n.a.

-0.122


Italy

n.a.

n.a.

n.a.

n.a.

-0.282


Significant overall effect


Sweden

n.a.

n.a.

n.a.

n.a.

0.358*


Greece

n.a.

n.a.

n.a.

n.a.

0.303*


Kyrgyzstan

n.a.

n.a.

n.a.

n.a.

0.332*


England

n.a.

n.a.

n.a.

n.a.

0.295*


The regression coefficients compare the total and age-specific ILI (influenza like illness) or ARI (acute respiratory infection) rates observed during the peak week of influenza activity, four weeks preceding the peak and four weeks following the peak in each of the countries

Ŧ Ranking is based on the regression coefficient for 0-4 age group

‡ a positive regression coefficient means that the rate observed during the pandemic was higher compared to the historical seasons; a negative regression coefficient means that the rate observed during the pandemic was lower compared to the historical seasons

*significant at p < 0.05

Martirosyan et al. BMC Infectious Diseases 2012 12:36   doi:10.1186/1471-2334-12-36

Open Data